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1. 发明授权

US06538804B1 Planar waveguide-type optical amplifier switch 失效
标题翻译：平面波导型光放大器开关
公开(公告)号：US06538804B1
公开(公告)日：2003-03-25
申请号：US09433455
申请日：1999-11-04
申请人： Kyong Hon Kim , Yong Gyu Choi , Hak Kyu Lee , Min Yong Jeon , Joon Tae Ahn , Dong Sung Lim , Ho Young Kim , Do Il Chang
发明人： Kyong Hon Kim , Yong Gyu Choi , Hak Kyu Lee , Min Yong Jeon , Joon Tae Ahn , Dong Sung Lim , Ho Young Kim , Do Il Chang
IPC分类号： H01S300
CPC分类号： G02F1/3132 , G02F1/225 , H01S5/4068 , H01S5/50
摘要： A planar waveguide-type optical amplifier switch is disclosed. The switch is developed with the purpose of solving the problems that the conventional waveguide-type optical switch, which has been being used in the optical communication technique, has an optical loss and thereby requires an external optical amplifier which makes the whole devices not suitable for forming an integrated compact device. The disclosed switch performs switching function from the refractive index change in the optical waveguides induced by electrical or optical controls as well as amplifying function of the optical signal, when it passes through the waveguides, from use of optical waveguides formed of a fluorescence emitting material with an optical pumping and a wavelength division multiplexing (WDM) optical waveguide-type coupler. The optical amplifier switch scheme, which provides a simultaneous optical switching and amplification in an optical waveguide form, allows the device fabricable in a compact integrated manner and more useful in practical applications. The optical amplifier switch in accordance with the present invention can replace the conventional optical switches of the prior art, and can promote technical development in the areas of high-capacity optical communication systems, massive optical signal processing, optical switching, optical computing, and so on.
摘要翻译：公开了一种平面波导型光放大器开关。开关是为了解决在光通信技术中使用的常规波导型光开关具有光损耗并因此需要外部光放大器的问题而开发的，这使得整个器件不适合于形成集成的紧凑型装置。所公开的开关从通过电光或光控制引起的光波导中的折射率变化执行切换功能，以及当光信号通过波导时放大功能，使用由荧光发射材料形成的光波导与光泵浦和波分复用（WDM）光波导型耦合器。提供光波导形式的同时光切换和放大的光放大器开关方案允许该器件以紧凑的集成方式可制造并且在实际应用中更有用。根据本发明的光放大器开关可以代替现有技术的传统光开关，并且可以促进大容量光通信系统，大规模光信号处理，光交换，光计算等领域的技术发展。上。

2. 发明授权

US06560251B1 Mode-locked laser stabilizing apparatus and method thereof 失效
标题翻译：锁模式激光稳定装置及其方法
公开(公告)号：US06560251B1
公开(公告)日：2003-05-06
申请号：US09705582
申请日：2000-11-02
申请人： Min Yong Jeon , Hak Kyu Lee , Dong Sung Lim , Joon Tae Ahn , Do Il Chang , Kyong Hon Kim
发明人： Min Yong Jeon , Hak Kyu Lee , Dong Sung Lim , Joon Tae Ahn , Do Il Chang , Kyong Hon Kim
IPC分类号： H01S313
CPC分类号： H01S3/06791 , H01S3/06712 , H01S3/08059 , H01S3/108 , H01S3/1109 , H01S3/139
摘要： There is disclosed a mode-locked optical fiber laser stabilizing apparatus for stabilizing the length of the optical fiber laser resonator by feedbacking the optical signals to the laser resonator, in the direction where the signal reflected by the optical fiber loop mirror is detected as an error signal to minimize the signal, and method thereof. According to the present invention, a resonator stabilizing apparatus in an optical fiber laser includes a non-linear optical amplitude loop mirror (NALM) for non-linearly amplifying a laser pumped laser light, a linear loop mirror of a closed loop shape for confining the laser light sufficiently amplified by the non-linear optical amplitude loop mirror; a light isolator for proceeding the light confined by said linear loop mirror only in one direction, an optical coupler for detecting the light proceeding in the direction opposite to the light isolator by the linear loop mirror, the phase of which is varied in the non-linear optical amplitude loop mirror, and a piezo-electric transducer (PZT) for performing a signal processing for minimizing the amount of light proceeding in an opposite direction when the light detector detects the light proceeding in the opposite direction and feedbacking again the light to stabilize the light, the light detector is coupled by the linear loop mirror and the optical coupler.
摘要翻译：公开了一种锁模光纤激光稳定装置，用于通过将光信号反馈到激光谐振器，使光纤环路反射的信号被检测为误差的方向来稳定光纤激光谐振器的长度信号以使信号最小化，及其方法。根据本发明，光纤激光器中的谐振器稳定装置包括用于非线性放大激光泵浦激光的非线性光学振幅反射镜（NALM），闭环形状的线性环形反射镜，用于限制激光由非线性光学振幅回波镜充分放大; 光隔离器，用于仅在一个方向上进行由所述线性环形反射镜限制的光;光耦合器，用于检测通过线性环形反射镜在与光隔离器相反的方向上行进的光，线性光学振幅回路镜和压电换能器（PZT），用于当光检测器检测到沿相反方向进行的光并且再次反馈光以稳定时进行信号处理以最小化在相反方向上进行的光量光，光检测器通过线性环路镜和光耦合器耦合。

3. 发明授权

US06426965B1 Optical fiber cascaded Raman laser scheme 失效
标题翻译：光纤级联拉曼激光方案
公开(公告)号：US06426965B1
公开(公告)日：2002-07-30
申请号：US09498457
申请日：2000-02-04
申请人： Do Il Chang , Min Yong Jeon , Hak Kyu Lee , Kyong Hon Kim
发明人： Do Il Chang , Min Yong Jeon , Hak Kyu Lee , Kyong Hon Kim
IPC分类号： H01S330
CPC分类号： H01S3/302
摘要： An optical fiber cascaded Raman laser scheme is provided. An optical fiber cascaded Raman laser scheme in accordance with an embodiment of the present invention includes a pump light source, an optical fiber, a wavelength division multiplexing optical fiber combiner, another wavelength division multiplexing optical fiber combiner, a short period optical fiber bragg grating, a long period bragg grating, first means, and second means. The pump light source generates pump light. The optical fiber causes Raman scattering regarding the optical pump light as nonlinear material. The wavelength division multiplexing optical fiber combiner forms intra cavity regarding light of second order stoke frequency shifted wavelength. The light is stoke frequency shifted by Raman scattering of the optical fiber. The another wavelength division multiplexing optical fiber combiner forms intra cavity regarding light of first and third order stoke frequency shifted wavelength. The light is stoke frequency shifted by Raman scattering of the optical fiber. The short period optical fiber bragg grating selects and reflects fourth stoke frequency shifted wavelength of output wavelength in intra cavity. The intra cavity is formed by the wavelength division multiplexing optical fiber combiner. The long period bragg grating causes loss on fifth order stoke frequency shifted wavelength and prevents oscillation. The fifth order is next order of output wavelength of the intra cavity. The first means passes pump light emitted from the pump light source and reflects light of fourth order stoke frequency shifted output wavelength. The first means is connected between the pump light source and the wavelength division multiplexing optical fiber combiner. The second means reflects pump light emitted from the pump light source and passing light of output wavelength.
摘要翻译：提供光纤级联拉曼激光器方案。根据本发明实施例的光纤级联拉曼激光器方案包括泵浦光源，光纤，波分复用光纤组合器，另一波分复用光纤组合器，短周期光纤布拉格光栅，长周期布拉格光栅，第一装置和第二装置。泵浦光源产生泵浦光。光纤引起关于光泵浦光的拉曼散射作为非线性材料。波分复用光纤组合器形成有关二阶振荡频移波长的光的腔内。光线被光纤的拉曼散射所驱动。另一个波分多路复用光纤组合器关于第一和第三阶振荡频移波长的光形成腔内。光线被光纤的拉曼散射所驱动。短周期光纤布拉格光栅选择并反映了腔内输出波长的第四发射频移波长。腔内由波分复用光纤组合器形成。长周期布拉格光栅引起第五阶振荡频移波长的损失，防止振荡。第五级是腔内输出波长的下一个顺序。第一种方法是通过泵浦光源发射的泵浦光，并反射出四阶波长的输出波长的光。第一装置连接在泵浦光源与波分复用光纤组合器之间。第二装置反映从泵浦光源发射的泵浦光并传出输出波长的光。

4. 发明授权

US06556596B1 Apparatus for generating an optical fiber laser capable of tuning a wavelength thereof 失效
标题翻译：用于产生能够调谐其波长的光纤激光器的装置
公开(公告)号：US06556596B1
公开(公告)日：2003-04-29
申请号：US09435301
申请日：1999-11-05
申请人： Ho Young Kim , Do Il Chang , Hak Kyu Lee , Kyong Hon Kim
发明人： Ho Young Kim , Do Il Chang , Hak Kyu Lee , Kyong Hon Kim
IPC分类号： H01S330
CPC分类号： H01S3/067 , H01S3/094096 , H01S3/1305 , H01S3/1312
摘要： An apparatus for generating an optical fiber laser capable of tuning a wavelength thereof. The apparatus comprises a pump laser to pump the light with changed polarization state, a light amplify fiber to produce a seed light using the pumped light from the pump laser at a certain operation wavelength and thereafter, when said seed light has stable frequency, to put out the light in that wavelength, a dispersion shift fiber to give a non-linear polarization effect to the output light from the light amplify fiber, a linear polarizer to tune the wavelength of the light from the dispersion shift fiber within a wavelength varying range, a light direction controller to give a certain oscillation direction to the tuned light, an optical element converging a light beam, with a cholesteric liquid crystal cell inserted, which transmits only a circularly polarized light having a consistent rotation period with the rotational direction of the liquid crystal surface and reflects all the rest of the light, and an output port to confirm a laser output light beam by putting out a certain portion of the light from said light converging element.
摘要翻译：一种用于产生能够调谐其波长的光纤激光器的装置。该装置包括泵浦激光器以泵浦具有改变的偏振态的光，光放大光纤以使用来自泵浦激光器的泵浦光以一定的工作波长产生种子光，此后，当所述种子光具有稳定的频率时，放置在该波长处的光，使色散位移光纤对来自光放大光纤的输出光产生非线性偏振效应，线性偏振器，以调节波长变化范围内来自色散位移光纤的光的波长，向调谐光赋予一定的振荡方向的光方向控制器，使聚光的光学元件与被插入的胆甾醇型液晶单元一体地旋转，该液晶单元只透过与液体的旋转方向一致的旋转周期的圆偏振光晶体表面反射所有其余的光，以及一个输出端口，通过放出一定的波数来确认激光输出光束来自所述光会聚元件的光。

5. 发明授权

US06385216B1 Optical fiber mode-locked laser 失效
标题翻译：光纤锁模激光器
公开(公告)号：US06385216B1
公开(公告)日：2002-05-07
申请号：US09439595
申请日：1999-11-12
申请人： Do Il Chang , Ho Young Kim , Kyong Hon Kim , Min Yong Jeon
发明人： Do Il Chang , Ho Young Kim , Kyong Hon Kim , Min Yong Jeon
IPC分类号： H01S3067
CPC分类号： H01S3/067 , H01S3/06712 , H01S3/09415 , H01S3/1112
摘要： An optical fiber mode-locked laser is disclosed. The laser comprises a gain medium doped optical fiber to achieve a population inversion between high and low energy levels by a pump light source and to oscillate optical waves in sequence, a cholesteric liquid crystal circular polarization mirror to transmit the waves from the pump light source and to be operated as a circular polarization reflection mirror for the oscillated optical waves from the gain medium doped optical fiber, a polarization controller to control the polarization state of the proceeding light which is oscillated from the gain medium doped optical fiber, a dispersion shifted fiber to give a non-linear effect to the proceeding light through the polarization controller, and an optical fiber laser output mirror which forms a resonator by putting out some portion of the proceeding light by transmission and reflecting the other portion of the light. With the present invention, one can effectively produce an ultrashort pulse with a simple structure and a few parts thereby improve an economic competence.
摘要翻译：公开了一种光纤锁模激光器。激光器包括增益介质掺杂光纤，以通过泵浦光源实现高能量和低能量之间的群体反转，并且依次振荡光波;胆甾型液晶圆偏振镜，用于传输来自泵浦光源的波;以及作为用于来自增益介质掺杂光纤的振荡光波的圆偏振反射镜，用于控制从增益介质掺杂光纤振荡的行进光的偏振状态的偏振控制器，将色散位移光纤对通过偏振光控制器的行进光进行非线性效应，以及光纤激光输出反射镜，其通过透射并反射光的另一部分而放出进行中的一部分光而形成谐振器。利用本发明，可以有效地生产具有简单结构和少量零件的超短脉冲，从而提高经济能力。

6. 发明授权

US07742223B2 System and method for implementing a boosterless optical communication system 有权
标题翻译：用于实现无极光通信系统的系统和方法
公开(公告)号：US07742223B2
公开(公告)日：2010-06-22
申请号：US11277332
申请日：2006-03-23
申请人： Andrej B. Puc , Do Il Chang , Andrzej S. Kaminski
发明人： Andrej B. Puc , Do Il Chang , Andrzej S. Kaminski
IPC分类号： H04B10/17 , H04B10/12
CPC分类号： H04B10/2937 , H01S3/06754 , H01S3/10007 , H01S3/302 , H01S2301/04 , H04J14/0221
摘要： An optical communication system includes a transmission fiber that is operable to receive at least one optical signal and at least one pump signal. The optical signal includes one or more optical signal wavelengths and a power level at approximately a minimum threshold power level. The pump signal co-propagates with at least a portion of the optical signal over at least a portion of the transmission fiber. In one particular embodiment, the pump signal operates to amplify the optical signal to approximately a maximum threshold power level as the pump signal and the optical signal traverse the portion of the transmission fiber.
摘要翻译：光通信系统包括可操作以接收至少一个光信号和至少一个泵信号的传输光纤。光信号包括一个或多个光信号波长和大约最小阈值功率电平的功率电平。泵浦信号与至少一部分光信号在传输光纤的至少一部分上共同传播。在一个特定实施例中，当泵浦信号和光信号穿过传输光纤的一部分时，泵浦信号用于将光信号放大到大致最大阈值功率电平。

7. 发明申请

US20070223084A1 System and Method for Implementing a Boosterless Optical Communication System 有权
标题翻译：实现无助光通信系统的系统和方法
公开(公告)号：US20070223084A1
公开(公告)日：2007-09-27
申请号：US11277332
申请日：2006-03-23
申请人： Andrej Puc , Do Il Chang , Andrzej Kaminski
发明人： Andrej Puc , Do Il Chang , Andrzej Kaminski
IPC分类号： H01S3/00
CPC分类号： H04B10/2937 , H01S3/06754 , H01S3/10007 , H01S3/302 , H01S2301/04 , H04J14/0221
摘要： An optical communication system includes a transmission fiber that is operable to receive at least one optical signal and at least one pump signal. The optical signal includes one or more optical signal wavelengths and a power level at approximately a minimum threshold power level. The pump signal co-propagates with at least a portion of the optical signal over at least a portion of the transmission fiber. In one particular embodiment, the pump signal operates to amplify the optical signal to approximately a maximum threshold power level as the pump signal and the optical signal traverse the portion of the transmission fiber.
摘要翻译：光通信系统包括可操作以接收至少一个光信号和至少一个泵信号的传输光纤。光信号包括一个或多个光信号波长和大约最小阈值功率电平的功率电平。泵浦信号与至少一部分光信号在传输光纤的至少一部分上共同传播。在一个特定实施例中，当泵浦信号和光信号穿过传输光纤的一部分时，泵浦信号用于将光信号放大到大致最大阈值功率电平。

8. 发明申请

US20070002904A1 System and method for fractional Raman order pumping in optical communication systems 有权
$System and method for fractional Raman order pumping in optical communication systems$
标题翻译：光通信系统中分数拉曼级抽运的系统和方法
公开(公告)号：US20070002904A1
公开(公告)日：2007-01-04
申请号：US11173629
申请日：2005-06-30
申请人： Herve Fevrier , Andrej Puc , Do Il Chang , Andrzej Kaminski
发明人： Herve Fevrier , Andrej Puc , Do Il Chang , Andrzej Kaminski
IPC分类号： H01S3/30
CPC分类号： H01S3/302 , H01S3/06758 , H01S3/094011 , H01S3/094096 , H01S3/10007 , H01S2301/04 , H04B10/2916
摘要： An optical communication system includes a gain medium that is capable of receiving at least one optical signal that includes one or more optical signal wavelengths. The system also includes one or more pump sources that are capable of generating at least one pump signal for introduction to the gain medium. The pump signal includes one or more fractional Raman order pump wavelengths having a Raman gain peak that is a non-integer multiple of one stokes shift from each of the one or more optical signal wavelengths. In one particular embodiment, the pump signal interacts with the optical signal as the pump signal traverses at least a portion of the gain medium.
摘要翻译：光通信系统包括能够接收包括一个或多个光信号波长的至少一个光信号的增益介质。该系统还包括能够产生用于引入增益介质的至少一个泵浦信号的一个或多个泵浦源。泵浦信号包括具有拉曼增益峰值的一个或多个分数拉曼阶泵浦波长，该拉曼增益峰值是来自一个或多个光信号波长中的每一个的一个斯托克斯偏移的非整数倍。在一个特定实施例中，当泵浦信号穿过增益介质的至少一部分时，泵浦信号与光信号相互作用。

9. 发明授权

US07665909B2 System and method for implementing a high capacity unrepeatered optical communication system 有权
标题翻译：实现高容量无中继光通信系统的系统和方法
公开(公告)号：US07665909B2
公开(公告)日：2010-02-23
申请号：US12032220
申请日：2008-02-15
申请人： Philippe A. Perrier , Sergey P. Burtsev , Do Il Chang , Andrzej S. Kaminski , Andrej B. Puc
发明人： Philippe A. Perrier , Sergey P. Burtsev , Do Il Chang , Andrzej S. Kaminski , Andrej B. Puc
IPC分类号： G02B6/36
CPC分类号： H04J14/0221 , H01S3/06758 , H01S3/094011 , H01S3/302 , H01S2301/04 , H04B10/2916 , H04B10/2937
摘要： A method of communicating an optical signal includes generating an optical signal at a bit rate of at least 2.5 Gb/s. The optical signal including at least thirty optical channels. In one particular embodiment, at least some of the thirty optical channels reside within a 1567-1620 nanometer wavelength range. The method also includes receiving the optical signal at a ROPA that includes a rare-earth doped optical fiber. In addition, the method includes introducing a pump signal to a communication span of the unrepeatered optical communication system. The pump signal operable to amplify the optical signal by Raman amplification within the communication span and including at least one pump signal wavelength operable to excite the rare-earth doped fiber. The method further includes receiving the optical signal after the optical signal has traversed at least 200 kilometers of the communication span.
摘要翻译：传送光信号的方法包括以至少2.5Gb / s的比特率生成光信号。光信号包括至少三十个光通道。在一个具体实施例中，三十个光通道中的至少一些位于1567-1620纳米波长范围内。该方法还包括在包括稀土掺杂光纤的ROPA处接收光信号。此外，该方法包括将泵浦信号引入到无中继光通信系统的通信跨度。泵浦信号可操作以在通信范围内通过拉曼放大来放大光信号，并且包括可操作以激励稀土掺杂光纤的至少一个泵浦信号波长。该方法还包括在光信号经过至少200公里的通信跨度之后接收光信号。

10. 发明授权

US07567593B2 System and method for fractional Raman order pumping in optical communication systems 有权
$System and method for fractional Raman order pumping in optical communication systems$
标题翻译：光通信系统中分数拉曼级抽运的系统和方法
公开(公告)号：US07567593B2
公开(公告)日：2009-07-28
申请号：US11173629
申请日：2005-06-30
申请人： Herve A. Fevrier , Andrej B. Puc , Do Il Chang , Andrzej S. Kaminski
发明人： Herve A. Fevrier , Andrej B. Puc , Do Il Chang , Andrzej S. Kaminski
IPC分类号： H01S3/30
CPC分类号： H01S3/302 , H01S3/06758 , H01S3/094011 , H01S3/094096 , H01S3/10007 , H01S2301/04 , H04B10/2916
摘要： An optical communication system includes a gain medium that is capable of receiving at least one optical signal that includes one or more optical signal wavelengths. The system also includes one or more pump sources that are capable of generating at least one pump signal for introduction to the gain medium. The pump signal includes one or more fractional Raman order pump wavelengths having a Raman gain peak that is a non-integer multiple of one stokes shift from each of the one or more optical signal wavelengths. In one particular embodiment, the pump signal interacts with the optical signal as the pump signal traverses at least a portion of the gain medium.
摘要翻译：光通信系统包括能够接收包括一个或多个光信号波长的至少一个光信号的增益介质。该系统还包括能够产生用于引入增益介质的至少一个泵浦信号的一个或多个泵浦源。泵浦信号包括具有拉曼增益峰值的一个或多个分数拉曼阶泵浦波长，该拉曼增益峰值是来自一个或多个光信号波长中的每一个的一个斯托克斯偏移的非整数倍。在一个特定实施例中，当泵浦信号穿过增益介质的至少一部分时，泵浦信号与光信号相互作用。

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